You into watercooling? Watercooling 101 has a go with the DangerDen Maze4 CPU
Waterblock.

Cooltechnica was nice enough to send me a DangerDen Maze 4 water block for
review recently and I was amazed at how good it looked. What I was really curious
to know however, was just how well it would perform compared to the Maze 3 since
the design has some important changes.......